[petsc-users] Aborting outer iterations when inner iterations reach maxits fieldsplit

Matthew Knepley knepley at gmail.com
Mon Feb 3 13:08:51 CST 2014

On Mon, Feb 3, 2014 at 12:58 PM, James MBewu <james.mbewu at gmail.com> wrote:

> Hi all petsc gurus,
> I am solving Navier Stokes equations using Q2-Q1 elements via libmesh and
> using petsc fieldsplit schur complement etc for the solving I was wondering
> whether it was possible to abort the outer iterations of the solver if the
> inner solver reached a set maximum iterations. At the moment if I set the
> maximum iterations of the inner solver, then once that is reached, the
> outer iterations continue and another inner solve is performed. Essentially
> I would like to say "I can't solve the inner problem so let's just give up
> on the whole thing". Is there any (easy) way to do this?



> Please advise, thanks,
> James

What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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